Estimation of rooftop water potential of college of basic sciences and humanities

Abstract

Rainwater harvesting is the most common technique used for domestic consumption. It is simple, low cost technique that requires minimum specific expertise or knowledge and offers many benefits. An integrated planning for Rooftop Rainwater Harvesting (RRWH) system for different zones of an educational building was carried out. Main objectives of the study were to identify the runoff generation locations and to estimate RRW potential of selected locations. The study revealed that seasonal and annual rainfall value on the basis of probability analysis of 20 years data (1995-2014) at 75% probability level were found 42 mm, 65.9 mm, 34.2 mm, 243.7 mm, 359.7 mm for June, July, August, September, seasonal and annual basis respectively. Also total estimated rooftop rainwater potential at 75% probability level was observed as 79584, 124871, 64804, 62340, 461778 and 681582 in litres in June, July, August, September, seasonal and annual basis respectively.